320434 has 4 divisors (see below), whose sum is σ = 480654. Its totient is φ = 160216.

The previous prime is 320431. The next prime is 320449. The reversal of 320434 is 434023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434023 = 71 ⋅6113.

It can be written as a sum of positive squares in only one way, i.e., 297025 + 23409 = 545^2 + 153^2 .

It is not an unprimeable number, because it can be changed into a prime (320431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80107 + ... + 80110.

2³²⁰⁴³⁴ is an apocalyptic number.

320434 is a deficient number, since it is larger than the sum of its proper divisors (160220).

320434 is a wasteful number, since it uses less digits than its factorization.

320434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160219.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 320434 is about 566.0689003999. The cubic root of 320434 is about 68.4299459633.

Adding to 320434 its reverse (434023), we get a palindrome (754457).

The spelling of 320434 in words is "three hundred twenty thousand, four hundred thirty-four".